Central Iowa move-up buyers who plan to keep their current house as a rental are about to qualify under a different set of mortgage rules. On September 2, 2026, Fannie Mae issued Selling Guide Announcement SEL-2026-08, which rewrites how "departing residence" rental income is counted. It is mandatory for loan applications dated November 1, 2026 or later, and lenders are encouraged to adopt it early - meaning two lenders quoting you this week may be working from two different rulebooks.
If you are deciding whether to sell your starter home in Ankeny or rent it out and buy the next one, this rule decides how much house you qualify for. Here is what changed and what to do about it.
It is the rent Fannie Mae lets you count from the home you are leaving - the one you intend to keep and rent - while you qualify for the mortgage on your next home.
This single line item quietly decides more move-up purchases than almost anything else in conventional lending, because it determines whether you are underwritten as someone carrying two mortgage payments or as someone carrying one payment plus an income stream. Those are very different approval numbers.
Under the outgoing rules, using rental income from your departing residence required an executed lease on that property. From there, two factors set how much of it helped you:
That first requirement created a genuine chicken-and-egg problem, and I have watched it kill otherwise sound Central Iowa move-ups. You needed a signed lease on your current home to get credit for the rent - but most owners do not have a tenant lined up until they know they are actually closing on the next house. So the income you were counting on could not be counted when you needed it counted.
Fannie Mae is moving away from the lease-dependent model. The new framework rests on three pillars instead: market-supported rents, reserve requirements, and PITIA offset limitations.
The headline shift is the documentation method. Instead of requiring an executed lease, the new structure leans on market-supported rent - an appraiser's opinion of achievable rent, in the same family as a rental comparable schedule. In plain terms: you may be able to document that income without a tenant already in place.
For a Central Iowa owner moving up from a starter home, that is the difference between guessing and knowing before you write an offer.
The same announcement also tightened lease standards more broadly - minimum lease terms, stronger validation, and restrictions on non-arm's-length leases, meaning renting to a family member below market rate gets more scrutiny. If you were planning to rent your old house to a relative, raise that with your lender early.
Building reserve requirements directly into the departing-residence framework tells you how Fannie Mae is thinking about this risk. Reserves and rental income calculations have historically lived in separate lanes. Tying them together suggests underwriters will look at whether you can genuinely carry the transition period between two mortgage payments - not just whether one month pencils out on paper.
Practically: start treating your post-closing liquid reserves as part of the qualification math, not an afterthought.
If someone has told you that you need 20% or 30% equity in your current home before any rent can count toward qualifying - that has not been true in conventional lending since 2015. The equity-cushion requirement was retired more than a decade ago.
Documentation and landlord experience have been the real gatekeepers for years, and SEL-2026-08 continues in that direction by changing the documentation method rather than reintroducing an equity test. If an outdated rule of thumb is the reason you have not run the numbers, run them.
I want to be straight with you about what is not yet settled. Fannie Mae has published the framework's structure, but the specific worked formulas - exact offset percentages, required reserve months, and market rent documentation standards - are still being finalized in the Selling Guide as lenders transition between now and November 1.
That is precisely why the question below matters more than any number I could print here.
Qualifying is only half the decision. Whether the house is a good rental is a separate question - one about cash flow, the condition of the roof and mechanicals, and whether you actually want to be a landlord. I wrote a full breakdown of that decision in should you turn your Central Iowa home into a rental instead of selling, and it is the right place to start if you are genuinely undecided.
If you want to see the numbers rather than read about them, run your current home through the Deal Calculator as if you were buying it today at its current value. If it would not clear your bar as a purchase, it may not clear it as a hold. And if selling is the stronger move, our seller's guide covers what that looks like from here.
The move-up-and-keep-it decision has three moving parts: what your current home would rent for, what it would sell for today, and what either path does to your approval on the next house. Those are answerable questions, and answering them before November 1 is worth real money.
Send me your address and I will put together the rent comparables and the sale-price range side by side, so you and your lender are working from the same numbers. Start here - and I will tell you honestly if the math says sell.
I am a REALTOR, not a lender. Fannie Mae's guidelines are set by Fannie Mae and applied by your lender's underwriting; confirm how SEL-2026-08 applies to your specific file with a licensed loan officer before making a decision.
Jackson Krile | Flanders Team | RE/MAX Real Estate Center
515.490.8614 · [email protected]
Let's talk through your specific situation - no pressure.